#include <stdio.h>
#include "msg/msg.h"
#include "xbt/sysdep.h"         /* calloc, printf */
/* Create a log channel to have nice outputs. */
#include "xbt/log.h"
#include "xbt/asserts.h"


XBT_LOG_NEW_DEFAULT_CATEGORY( MapReduceSimulator, "first msg");
int sender(int argc, char *argv[]);
int receiver(int argc, char *argv[]);
msg_error_t test_all(const char *platform_file, const char *application_file);

int sender(int argc, char *argv[]) {
	long number_of_tasks = atol(argv[1]);
	double task_comp_size = atof(argv[2]);
	double task_comm_size = atof(argv[3]);
	long receivers_count = atol(argv[4]);
	double sleep_start_time = atof(argv[5]);
	double sleep_test_time = atof(argv[6]);
	XBT_INFO("sleep_start_time : %f , sleep_test_time : %f", sleep_start_time,
			sleep_test_time);
	msg_comm_t comm = NULL;
	int i;
	msg_task_t task = NULL;
	MSG_process_sleep(sleep_start_time);
	for (i = 0; i < number_of_tasks; i++) {
		char mailbox[256];
		char sprintf_buffer[256];
		sprintf(mailbox, "receiver-%ld", i % receivers_count);
		sprintf(sprintf_buffer, "Task_%d", i);
		task = MSG_task_create(sprintf_buffer, task_comp_size, task_comm_size,
		NULL);
		comm = MSG_task_isend(task, mailbox);
		XBT_INFO("Send to receiver-%ld Task_%d", i % receivers_count, i);
		if (sleep_test_time == 0) {
			MSG_comm_wait(comm, -1);
		} else {
			while (MSG_comm_test(comm) == 0) {
				MSG_process_sleep(sleep_test_time);
			};
		}
		MSG_comm_destroy(comm);
	}
	for (i = 0; i < receivers_count; i++) {
		char mailbox[80];
		sprintf(mailbox, "receiver-%ld", i % receivers_count);
		task = MSG_task_create("finalize", 0, 0, 0);
		comm = MSG_task_isend(task, mailbox);
		XBT_INFO("Send to receiver-%ld finalize", i % receivers_count);
		if (sleep_test_time == 0) {
			MSG_comm_wait(comm, -1);
		} else {
			while (MSG_comm_test(comm) == 0) {
				MSG_process_sleep(sleep_test_time);
			};
		}
		MSG_comm_destroy(comm);
	}
	XBT_INFO("Goodbye now!");
	return 0;
}

int receiver(int argc, char *argv[]) {
	msg_task_t task = NULL;
	_XBT_GNUC_UNUSED msg_error_t
	res;
	int id = -1;
	char mailbox[80];
	msg_comm_t res_irecv;
	double sleep_start_time = atof(argv[2]);
	double sleep_test_time = atof(argv[3]);
	XBT_INFO("sleep_start_time : %f , sleep_test_time : %f", sleep_start_time,
			sleep_test_time);
	_XBT_GNUC_UNUSED
	int read;
	read = sscanf(argv[1], "%d", &id);
	xbt_assert(read, "Invalid argument %s\n", argv[1]);
	MSG_process_sleep(sleep_start_time);
	sprintf(mailbox, "receiver-%d", id);
	while (1) {
		res_irecv = MSG_task_irecv(&(task), mailbox);
		XBT_INFO("Wait to receive a task");
		if (sleep_test_time == 0) {
			res = MSG_comm_wait(res_irecv, -1);
			xbt_assert(res == MSG_OK, "MSG_task_get failed");
		} else {
			while (MSG_comm_test(res_irecv) == 0) {
				MSG_process_sleep(sleep_test_time);
			};
		}
		MSG_comm_destroy(res_irecv);
		XBT_INFO("Received \"%s\"", MSG_task_get_name(task));
		if (!strcmp(MSG_task_get_name(task), "finalize")) {
			MSG_task_destroy(task);
			break;
		}
		XBT_INFO("Processing \"%s\"", MSG_task_get_name(task));
		MSG_task_execute(task);
		XBT_INFO("\"%s\" done", MSG_task_get_name(task));
		MSG_task_destroy(task);
		task = NULL;
	}
	XBT_INFO("I'm done. See you!");
	return 0;
}

msg_error_t test_all(const char *platform_file, const char *application_file) {
	msg_error_t res = MSG_OK;
	/* MSG_config("workstation/model","KCCFLN05"); */
	XBT_INFO("Starting creating environment at %g", MSG_get_clock());
	{ /*  Simulation setting */
		MSG_create_environment(platform_file);
	}
	{ /*   Application deployment */
		MSG_function_register("sender", sender);
		MSG_function_register("receiver", receiver);
		MSG_launch_application(application_file);
	}
	res = MSG_main();
	XBT_INFO("Simulation time %g", MSG_get_clock());
	return res;
}

int main(int argc, char *argv[]) {
	msg_error_t res = MSG_OK;
	MSG_init(&argc, argv);
	if (argc < 3) {
		printf("Usage: %s platform_file deployment_file\n", argv[0]);
		printf("example: %s msg_platform.xml msg_deployment.xml\n", argv[0]);
		exit(1);
	}
	XBT_INFO("Simulation time %s, %s", argv[1], argv[2]);
	res = test_all(argv[1], argv[2]);
	if (res == MSG_OK)
		return 0;
	else
		return 1;
}
